Update eslint monorepo to v9.15.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@eslint/js (source)	9.14.0 -> 9.15.0
eslint (source)	9.14.0 -> 9.15.0

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Release Notes

eslint/eslint (@​eslint/js)

v9.15.0

Compare Source

eslint/eslint (eslint)

v9.15.0

Compare Source

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Configuration

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